Device for opening preserve-tins.



R. E. WALTHER. DEVICE FOR OPENING PRESERVE TINS.

v APPLIOATION FILEP FEB. 16, 1912 Patented Sebt. 2, 1913.

2 SHEETS-8HEET 1.

v [NV/INTO]? WITNESSES. Mfl/ mm Atmrney R. E. WALTHER. v DEVICE FOR OPENING PRESERVE TINS. APPLICATION FILED PBB.16, 1912.

1,071,974. Patented Sept. 2, 1913.

2 BHEETB-BHEET 2.

fitter-may.

ROBERT man.

WALTHER, OF WERDAU, GERMANY.

DEVICE FOR OPENING IPR'ESERVE -TINS.

Specification of Letters Patent. Application filed February 16, 1912. Serial No. 678,007.

Patented Sept. 2, 1913.

provements in Devices for Opening Preserve-Tins, of which the following is a specimoves around the tin opening preserve fication, reference being had therein to the accompanying drawing.

This invention relates to a device for.

tins by means of an vadustable cutter or the like the inventive idea of which is that the movement of the cutter and the supporting roll is brought about by a rotatablymovable shaft provided with a ribbed wheel on its free endtogether with the guide rolls bearing onthe outer edge of the tin in such a manner that the device in conformity with the rotation of the shaft, while the tin itself re mains stationary. j Two forms of this device are shown in the drawing.

Figure 1 is a side elevation of the device, Figs. 1 and 1 are enlarged views of details to be described hereinafter. Fig. 2 is a plan view thereof. Fig. 3 is a plan view of a modification as viewed from below. Fig. 4 is an end elevation partly in section."

In the body a, which may e given any desired form, a shaft bearing a ribbed roll 0 and provided with a handle is mounted.

. Rolls ,or pins e which may be set in accordance with the form of the tin by means of the slit guides f and the thumb nut g, are mounted on the lateral projections d. By means of the guides or the rolls e the device is given the necessary rigidity and the cutter It is prevented from slipping ofli the surface to be out, thus securing a clean out without any bur.

Fixed underneath the cast-iron body is a thumb nut 71 with a threaded bolt, which latter being connected to an obliquely projecting arm serves to. press the supporting roll under the backwardly bent edge of the tin in order that the cutter k may e pressed in the edge of the tin so that the device is caused to move around the edge of the tin by the ribbed wheel 0 when the handle fixed on the shaft is turned. Fixed on the opposite side of the body a is a thumb nut 5 which serves to set the cutter for cutting the tin in lmown manner, the projecting stop m, which may be replaced by a handle fixed under the body a, is for the purpose of giving the device the correct position upon the tin to be opened, so that the projecting supporting roller is correctly engages under the backwardly turned edge of the tin.

In Figs. 3 and 4 the body a is shown in the form of a pair of tongs. When the edge of the preserve tin is gripped with these tongs between the guide rolls 6 and the supporting roll is, and the ribbed wheel 0 pressed against the edge of the tin by pressing the shanks of the tongs'together, the

cutter h pierces the lid of the tin. The shanks of the tongs are then held together by the spring-device" d or the like, so that when the shaft is turned by the handle and the preserve moved around the tin and the cutter h cleanly cuts out the lid of the tin without Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

A. device for opening cans comprising a body, a shaft on said body, a ribbed roller and a handle on said shaft, arms laterally adjustable on said body having slots near their inner ends, a thumb screw to hold said arms in position, adjustable projections pivoted to the lower ends of said bod and to said'arms, grooved wheels on sai projections-to engage the upper edge of the can, a cutter operatively supported on the lower part of said body and means to hold the device in operative position.

In testimony w ereof I have signed my name to this specification in the presence of two subscribing witnesses.

ROBERT EMIL WALTHER. [L- 8-] tin held stationary,the tool is 

